The SCOM console UI has a default refresh rate of 15 seconds. In a large environment this can create performance issues when many consoles are running.
To chnage the refresh rate for a console update the registry key
HKCU\Software\Microsoft\Microsoft Operations Manager\3.0\console\CacheParameters\ PollingInterval
Vaules are 0-10 0=No refresh only via F5
1-10 = Refresh intervals of 15 seconds.